( 8380 ) 
Fu ae 
‘ 
1 ‚ 
‘ 1 a 
i , 
+ \ % 
\ Ae 
! \ 6 
| 4 
\ \ Pa 
77 
\ \ ar 
\ \ a 
\ \ 7 
\ 1 RA 
\ \ De 
\ 1 4 
\ says 
y \ oom 
N 1 
KEL 
Fig 43. 
points get further apart. This yields the branch which runs upward 
on the right of P,, and terminates in the critical point of the second 
component, and the lefthand branch which contains the hidden plait- 
point. At first we can consider this hidden plaitpoint as belonging 
to the realisable part of the righthand branch, till the temperature 
is reached at which occurs what I have called: “Transformation of 
of a branch plait into a main plait and vice versa” (These Proc. 
March 25 p. 621). Now at the beginning and long after, the liquid 
sheet 2,3 is the branch plait, and then a hidden plaitpoint always 
belongs to the plaitpoint which lies at the top of this sheet. But at 
